Coated boron layers by boronization and a real-time boron coating using an impurity powder dropper in the LHD
文献类型：期刊论文
| 作者 | Ashikawa, Naoko1; Lunsford, Robert2; Nespoli, Federico2; Gilson, Erik2; Yu, Yaowei3 ; Hu, Jiansheng3; Kado, Shinichiro4
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| 刊名 | PLASMA SCIENCE & TECHNOLOGY
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| 出版日期 | 2024-08-01 |
| 卷号 | 26 |
| 关键词 | boron layer oxygen impurity hydrogen recycling impurity powder dropper LHD EAST |
| ISSN号 | 1009-0630 |
| DOI | 10.1088/2058-6272/ad495f |
| 通讯作者 | Ashikawa, Naoko(nasikawa@hotmail.co.jp) |
| 英文摘要 | In the Large Helical Device (LHD), diborane (B2H6) is used as a standard boron source for boronization, which is assisted by helium glow discharges. In 2019, a new Impurity Powder Dropper (IPD) system was installed and is under evaluation as a real-time wall conditioning technique. In the LHD, which is a large-sized heliotron device, an additional helium (He) glow discharge cleaning (GDC) after boronization was operated for a reduction in hydrogen recycling from the coated boron layers. This operational time of 3 h was determined by spectroscopic data during glow discharges. A flat hydrogen profile is obtained on the top surface of the coated boron on the specimen exposed to boronization. The results suggest a reduction in hydrogen at the top surface by He-GDC. Trapped oxygen in coated boron was obtained by boronization, and the coated boron, which has boron-oxide, on the first wall by B-IPD was also shown. Considering the difference in coating areas between B2H6 boronization and B-IPD operation, it would be most effective to use the IPD and B2H6 boronization coating together for optimized wall conditioning. |
| 资助项目 | NIFS budgets[KOBF031] ; NIFS budgets[ULFF004] ; NIFS budgets[KUHR032] ; JSPS KAKENHI[18K04999] ; JSPS-CAS Bilateral Joint Research Projects, Control of wall recycling onmetallic plasma-facing materials in fusion reactor[GJHZ201984] ; Chinese Academy of Sciences President's International Fellowship Initiative[2024VMB0003] ; U.S. Department Of Energy[DE-AC02-09CH11466] ; Princeton University |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001271230600001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | NIFS budgets ; JSPS KAKENHI ; JSPS-CAS Bilateral Joint Research Projects, Control of wall recycling onmetallic plasma-facing materials in fusion reactor ; Chinese Academy of Sciences President's International Fellowship Initiative ; U.S. Department Of Energy ; Princeton University |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137116]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ashikawa, Naoko |
| 作者单位 | 1.Natl Inst Fus Sci, Toki 5095292, Japan 2.Princeton Plasma Phys Lab, Princeton, NJ 08540 USA 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 4.Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan |
| 推荐引用方式 GB/T 7714 | Ashikawa, Naoko,Lunsford, Robert,Nespoli, Federico,et al. Coated boron layers by boronization and a real-time boron coating using an impurity powder dropper in the LHD[J]. PLASMA SCIENCE & TECHNOLOGY,2024,26. |
| APA | Ashikawa, Naoko.,Lunsford, Robert.,Nespoli, Federico.,Gilson, Erik.,Yu, Yaowei.,...&Kado, Shinichiro.(2024).Coated boron layers by boronization and a real-time boron coating using an impurity powder dropper in the LHD.PLASMA SCIENCE & TECHNOLOGY,26. |
| MLA | Ashikawa, Naoko,et al."Coated boron layers by boronization and a real-time boron coating using an impurity powder dropper in the LHD".PLASMA SCIENCE & TECHNOLOGY 26(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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